Analog Devices Inc./Maxim Integrated MAX4784EUE+

Overview

MAX4784EUE+ from Maxim Integrated is a low-voltage, quad 2:1 analog multiplexer IC designed for rail-to-rail signal routing in battery-powered systems. It operates from a single +1.6V to +4.2V supply, delivers 0.7Ω on-resistance at +2.7V, achieves 20ns turn-on time, and consumes less than 1µW quiescent power - enabling high-fidelity audio/video switching in cellular phones and portable data-acquisition devices.

For engineers reviewing the MAX4784EUE+ datasheet, MAX4784EUE+ pinout, MAX4784EUE+ application, or MAX4784EUE+ equivalent, key selection criteria include its TSSOP-16 package, +1.8V CMOS logic compatibility, 0.1Ω R_ON flatness, and guaranteed break-before-make timing for glitch-free channel selection.

Technical Context

The MAX4784EUE+ implements four independent bidirectional 2:1 analog switches using CMOS process technology, each with separate normally open (NO) and normally closed (NC) terminals plus a common (COM) terminal. Its control logic uses two address inputs (A0, A1) and an active-low enable (EN) to select one of two analog paths per channel.

Switching performance is optimized for low-voltage operation: at +2.7V supply, it maintains 0.7Ω R_ON with only 0.1Ω variation across the full analog signal range (0V to V+), while delivering -67dB off-isolation and -95dB crosstalk at 1MHz - critical for high-channel-density signal routing without interference.

Key Specifications

Pinout & Package

MAX4784EUE+ is housed in a 16-pin TSSOP package (3.0mm × 4.4mm, 0.65mm pitch) with exposed pad not electrically connected - optimized for compact PCB layouts and thermal dissipation in space-constrained handheld devices.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog multiplexer applications.

Compared with MAX4780EUE+, the MAX4784EUE+ adds A1 for expanded 2-bit addressing and removes EN - trading hardware disable for finer channel control. Against TMUX1574PWR, it offers lower R_ON, NC terminals, and tighter flatness, making it superior for audio and precision routing where signal integrity and default-path reliability are critical.

Availability

MAX4784EUE+ is available at Aetrix Electronics and suitable for cellular phone audio routing, portable data-acquisition systems, and battery-powered modem interfaces requiring stable component supply across extended production lifecycles.

Supply support for MAX4784EUE+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.

The MAX4784EUE+ belongs to Maxim's low-voltage analog switch product line, engineered specifically for rail-to-rail signal routing in space- and power-constrained portable electronics with stringent THD and crosstalk requirements.

FAQ

What is the maximum analog signal voltage range supported by the MAX4784EUE+?

The MAX4784EUE+ supports rail-to-rail analog signals from GND to V+, meaning the full input range equals the supply voltage. When powered from +2.7V, it passes signals from 0V to +2.7V without clipping or distortion - verified across -40°C to +85°C operating temperature range per datasheet Figure 1 and Table 1.

Does the MAX4784EUE+ require external pull-up or pull-down resistors on its address pins?

No, the MAX4784EUE+ does not require external biasing on A0 or A1. Its logic inputs accept voltages from GND to +4.2V regardless of V+ supply level, and input leakage remains within ±1µA across temperature - allowing direct connection to microcontroller GPIOs without additional components.

How does the MAX4784EUE+ handle power-supply sequencing during startup?

The MAX4784EUE+ requires V+ to be applied before any analog signals (COM_, NO_, NC_) to prevent latch-up or ESD damage. Datasheet Application Information specifies that V+ must be sequenced first, followed by analog signal application - no special reset or initialization sequence is needed beyond this power-ordering requirement.

Can the MAX4784EUE+ be used in audio applications requiring low total harmonic distortion (THD)?

Yes, the MAX4784EUE+ achieves 0.008% THD at 20Hz–20kHz with 2V_P-P signal into 32Ω load at +3.0V supply - measured per datasheet Figure 10. This performance, combined with 0.1Ω R_ON flatness, makes it suitable for high-fidelity headphone and speaker switching in portable audio devices.

What is the thermal performance of the MAX4784EUE+ in TSSOP package?

The MAX4784EUE+ in TSSOP-16 has a thermal resistance θ_JA of 106.4°C/W (calculated from 755mW max power dissipation at +70°C ambient and 14.7mW/°C derating). With typical <2µA supply current, self-heating is negligible - no heatsink or thermal vias are required for standard operation.